How Many Atoms Are Present in a Sample of Pure

question 64

Multiple Choice

How many atoms are present in a sample of pure iron with a mass of 300 g? (The atomic mass of iron = 56 and N_A = 6.02 x 10²³)

• A)1.8 x 10¹⁹
• B)6.7 x 10²²
• C)1.6 x 10²⁸
• D)3.2 x 10²⁴

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Definitions:

Level Off

The point at which something stops increasing or decreasing and remains consistent.

Performance

The action or process of carrying out or accomplishing an action, task, or function.

Stress Increases

A situation or condition that leads to heightened levels of stress, potentially affecting health or performance.

Increase

A rise in quantity, size, amount, or degree of something.